In a Globe story this February, reporter Eric Moskowitz noted that Boston fills approximately 19,000 potholes in an average winter, and that the city has gone as far as developing a new app, called Street Bump, that attempts to give drivers the ability to instantly notify City Hall when a new crater appears. And that's just the city of Boston. Do the math and consider how many gaping holes have appeared in the New England region after last winter's prodigious snowfall.
Anyway, I originally ordered two solid honeycomb-types tires, assuming the claims of then being nearly impossible to mount were wildly overblown... of course, I was unable to mount the rear (I didn’t even attempt the front). This is a perfect replacement and the included rotor and rim appear identical to OEM.
The spring configuration allows the torque to be transferred smoothly between the hub and the rim
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GRAND RAPIDS, Mich. — For spring 2021, TerraTrike is going big with an ambitious new model inspired by its popular Gran Tourismo, and the result is a faster, more stable and more comfortable ride. The Gran Tourismo Sport, or GTS, is TerraTrike’s entry to the growing category of all-road endurance cycling – it’s quick enough to jump into a fast group ride, but comfortable enough for hours-long gran fondos. Read More » The Impact of Bent Collisions – April 11th at 2 pm ET. Posted on April 9, 2021 by Larry Varney Jason Dubin has been hit by cars while riding his recumbent bikes and velomobiles in the streets of New York city many times. He joins us to share video and commentary of 3 of these horrifying collisions and talk about his personal safety. Then we widen the discussion with Steve Magas “Ohio’s Bike Lawyer” and our panel to put bent safety into some context and search out the best way for us all to avoid becoming another sad roadside statistic. Honza will present the news, Denny is back with his sports report, Nina Paley leads off our new Bent Product Review series with a look at the Mango velomobile and Doug returns with another “Bent Road Fixes” segment. Laidback Bike Report March 14! Posted on March 13, 2021 by Larry Varney It’ll be crazy fun hearing from the boys of the British Human Power Club on March 14th’s webcast. Join us live at 2 pm eastern time zone on FB or on YouTube here: https://youtu.be/Oijf6afNwlo.
A trailing arm is attached to the wheel hub at one end, and extends forward to a pivot on the frame.
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Also showing up for this jam packed webcast we have Honza with the recumbent news, Jason Dubin with his project to build and race velomobiles with New York City youth and then Ben Goodall owner of Trisled tells us about the newest update to the Rotovelo. With Recumbent Cycle-Con cancelled I’ve edited Chuck Coyne’s interview to reflect the history of the event, Mark Lovegrove from the UK talks about his two e-assist motor installations, Larry Varney reviews the AR3 tilting trike and Denny’s sports segment features John McWhae who just completed a record making ride across Alberta in spite of his battle with arthritis. 2021 Recumbent Cycle-Con Postponed Posted on July 31, 2021 by Larry Varney
Wheelchair design has evolved in recent years but users can still find it demanding to propel themselves. That can be especially difficult and uncomfortable on rough surfaces such as cobbles and paving stones.
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You are currently viewing our boards as a guest so you have limited access to our community. Please take the time to register and you will gain a lot of great new features including; the ability to participate in discussions, network with other RV owners, see fewer ads, upload photographs, create an RV blog, send private messages and so much, much more! Personally I don't like to lift wheels off the ground with the jacks and I would never lift the drives off the ground. If it's so unlevel that the wheels would be off the ground, I'll run up on some boards first to get close, then finish leveling with the jacks. Fronts are ok. You won’t damage anything. As stated above, never the rears (drive wheels) because the parking brakes are on the rears. If you’re not comfortable with the fronts being off the ground, you can build some small ramps or wood blocks you can drive the front wheels onto. If you search for ramps on this forum you’ll find lots of examples. When an air bag RV is lifted, ONLY the axle weight is left on the ground. no matter the lift height. This is unlike a leaf or coil spring vehicle. The tires provide limited stopping. If the leveler pads are on softer ground, they will put much restriction to the RV moving sideways as the pads will be in a hole. The suspension system has no problem handing from the shocks / limit straps. It endures FAR greater stress while you are driving down the road soaking up the bumps and road heaves. All that being said, try to NOT lift the RV any further up than is required. Things inevitably break. Hydraulic lines, solenoids, seals etc. You don't want a single leg to drop on it's own which the torques the chassis. An RV up in the air is invitation to crawl underneath or store stuff under. Not good when something breaks. So, pick a more level spot or use blocks to get the rig as level as you can before lifting. Don't park on a hill and lift so that there is no chance of slipping sideways (tire and / or leveling pad friction). Your drive axle (brakes) always have to be on the ground... else you'll go down hill as soon after you've walked bow to stern inside the coach a few times... I don't like to lift either off the ground ever. I only use the jacks enough to level the final little bit and to not have the coach shake while moving around in it. The thread Sonic posted is great! I use 2x10s like suggested in the posted link, but took it slightly further. I didn't cut an angle, don't really need it and in the past I found that it sometimes gives them the ability to slip while driving onto them. I would post pictures but it is in the shop for engine repair and the boards are in unit. Basically I took 2x10s and cut 2 boards the longest that would fit in the bay I was storing them in (about 36 inches long). I then cut 3 more boards about 8 inches shorter (for a total of 4 boards high), so lenghts of, 12, 20, 28, 36 long. I have 2 sets in case there is a need for the rear duals to go on boards. To keep the boards from sliding when driving onto them, I bought 3 different size carriage bolts that would go through 2, 3, or 4 boards but not all the way through, just long enough to keep them stable as you drive. I then took a spade bit that was 1/8 inch larger than the bolts and drilled through all 4 boards to accommodate the bolts, i did this in the rear where they would line up even and no worry about puncturing tires if they popped up slightly. I then took a spade bit slightly larger than the bolt head, and drilled on top of the holes the thickness of the bolt head. This way they sit down flush with the boards. It works very well! For the jack pads, I couldn't use anything very thick, as if I am on level ground and I dump the air, I only have about 4 inches between the jack pad and ground. I took 2x4s, and cut them the length of 3 2x4s put next to each other. I cut 6 in total. I then laid them crossways (think the first 2 layers of Jenga) and nailed them together from both sides. These work great for leveling! When i get it back from the shop next week I will try to remember to post some pictures. Your drive axle (brakes) always have to be on the ground... else you'll go down hill as soon after you've walked bow to stern inside the coach a few times...
When driven wheels are independently suspended, the differential is fixed to the frame and drives the wheels by jointed drive shafts.
The front wheels must be free to pivot on their steering swivels. The driven wheels, whether front or rear, must also be free to rotate with the drive shafts .
Shock-Absorbing Wheel
OK, after pouring through much of the other thread, I felt I spent so much time looking at setups that weren't relevant to what I was looking to do...which is stay on stock suspension. So this thread is dedicated to Aftermarket wheels on stock suspension. *List wheel make and model with offset and width as well as tire make/model/size. *Try to take pics showing "poke." That means refrain from turning the front wheels for the pics. Keep 'em pointed straight and try to get some shots down the side of the car that will help others make a decision. *If you've rolled, pulled fenders and/or used the slotted strut mounts for more tire/fender clearance that is ok, just let us know when you post your setup.
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It's 10am and the door rings. I cannot get down the stairs to answer the door. I'm sore from a fall the day before and today, the st...
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They’ve also developed a more bullet-proof wheelset with 25mm of shock travel called Fluent B designed for urban bike share programs. It includes a dynamo front and an internally geared rear hub. Lastly, the Fluent E is an e-bike version with 40mm of stroke and an integrated proprietary rear hub motor.
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In the garage: Mazda 5, Dodge Neon George Kennedy is a senior writer for WheelsTV in Acton, which produces video reviews for Yahoo, MSN, and other auto websites. Select a month February 2014 January 2014 September 2013 August 2013 April 2013 February 2013 January 2013 November 2012 October 2012 September 2012 August 2012 July 2012
We put up with a lot from our pneumatic tires, from punctures and blowouts, to slashings and the certainty of relatively frequent, inconvenient replacements and giant piles of waste rubber. The current technology seems well overdue for a revolutionary overhaul, if you'll pardon the pun, and yet despite dozens of fascinating attempts to reinvent the wheel, nothing seems to have found traction yet. Boy, I'm on a roll here.
Baigh's first prototype design comprised of parts purchased from Home Depot. The idea has since been patented.
After building a PacMac track in its previous video in the Cat Trials series, Caterpillar set up a mock Hot Wheels race track featuring a variety of Cat equipment and life-sized versions of Hot Wheels cars.
[Hot Item] Heavy duty spring loaded casters, SA63R-5''/6''/8'', Caster Wheels, China, Factory, Suppliers, Manufacturers
Because of the similarities between bicycle wheels and wheelchair wheels, it made sense for the Loopwheels team to look at developing a smoother wheelchair ride. To that end, they just wrapped up a successful Kickstarter campaign, raising close to $33,000 toward their shock-absorbing wheelchairs. Loopwheel Reinvents the Bike Wheel With a Suspension System Built Into the Rims Vincent Chan's Citi.Transmitter Shows How a Modular Vehicle Could Support Sustainable Cities By logging into your account, you agree to our Terms of Use and Privacy Policy, and to the use of cookies as described therein. I agree to receive emails from the site. I can withdraw my consent at any time by unsubscribing. I agree to Inhabitat's Terms of Use, Privacy Policy, and to the Cookie Policy described therein, and I also consent to the collection, storage, and processing of my data in the United States, where data protection laws may be different from those in my country. Categories ▼ Gift Guide Giveaways Exclusives Buyer's Guides Gear Style Autos Entertainment Food Fitness Household Outdoors OMG!!! NFTs Giveaways Exclusives Login Signup Contact Us About Us Suggest a Product Giveaway Partnership Advertise Privacy Policy
For wheelchairs and bicycles, adding SoftWheel suspension is all about increasing energy efficiency and making the ride much more comfortable. For the car and plane markets, the system will be able to save manufacturers a lot of money, Barel predicts. “The bigger the vehicle, the more suspension you need, and both cars and planes have elaborate suspension systems,” said Barel. “In order to make up for the energy expended on the suspension, engines have to be made to work harder, using more fuel and resources. With our sensor-based technology and the suspension system built into the wheels, you can save a lot of fuel.”
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For the first time ever on a Ram Truck, aluminum shift paddles are integrated within the flat-bottom steering wheel.
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A good set of winter tires are a must in our area. The expense will be significantly lower than replacement tires in the larger size, you'll keep half your annual mileage off the bigger tires, and you'll enjoy significantly better traction in the lousy weather. Comments () E-mail story Print story Please take a minute to register. After you register and pick a screen name, you can publish your comments everywhere on the site. Posting Policy.
But the negatives are pretty significant, especially in and around Boston, where our roads are rapidly deteriorating, and potholes are a regular occurrence.
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Loopwheel springs are made from a carbon composite material, carefully developed and tested to give optimum compression and lateral stability as well as strength and durability. Specially-designed connectors attach the springs to the hub and rim. The three loops in each wheel work together as a self-correcting system. This spring system between the hub and the rim of the wheel provides suspension that constantly adjusts to uneven terrain – cushioning the rider from bumps and potholes in the road. In effect, the hub floats within the rim, adjusting constantly as shocks from an uneven road hit the rim of the wheel. The spring configuration allows the torque to be transferred smoothly between the hub and the rim.
The loopwheel was designed by company founder Sam Pearce, a product designer and mechanical engineer. The spokes have been replaced by a new interior that makes it easier to go over uneven or bumpy ground and removes vibration.
A Life Lesson About People With Disabilities For Parents Everywhere - "Giving a child a good experience may ultimately make them more understanding and comfortable. The problem is though that some parents don’t know how to react to their child’s curiosity."
agreed..but if money is an issue, I'd grab the $100 set of springs first then get the wheels. from experience in my trans am, springs/shocks/struts/whatever made a HUGE HUGE HUGE difference. I put vette wheels on and I just got wider tires which was sweet but i noticed a BIGGER difference from springs/shocks Well, my budget only allows for one at a time, and i'm just worried if I get springs ill have to just take guesses on wheel/tire sizes. I'm very unfamiliar with this kinda stuff as it is my first go. From what I am gathering the springs i'm planning on getting lower 1.5 - 1.75 im guessing the 1.75 is after they kinda break in over time. Not sure. However, the issue is knowing what tires to go with. If I have to chose 1.5 or 1.75 which is a better option? Keep in mind i'm most likely getting 15X7wheels, seems common enough and im not big on bigger size wheels, hell, i'm rocking 13's at the moment, steelies.. but 13's either way Also, I am not the fan of the "slammed" scene. I am more so into the flush look. Deleted wheel gap but not so over the top that negative camber makes my wheels look broken So from this information hopefully I can get some guidance with a tire size for 15X7 or maybe a slightly different recommendation based on the ride height adjustment soon to come. I also may consider 16's but 15's prefered. lets B-serious here tho, suspension first or else you'll be at stock hight or bounching around on these ebay special "coils", don't cheap out on tires like I see soooo many ppl do. lets B-serious here tho, suspension first or else you'll be at stock hight or bounching around on these ebay special "coils", don't cheap out on tires like I see soooo many ppl do.
ew springs without shocks, what good is that? and shocks, they slow you down a lot when you dont; need them ew again just something else to cost more, add weight and subtract speed no thanks plus when you stop the bike will dive Michael Crumpton April 18, 2013 05:18 PM
The wheelchair application seems to run straight into the eternal problem with sprung wheels. Without dampers, they bounce badly, as sometimes seen in tractors fitted with buckets on a bad road. With dampers, they have very high rolling resistance. I tire needs enough flex to meet the ground, but any further suspension should be on the axle. Lardo January 30, 2018 06:00 PM
These air shocks are tuneable to give you whatever level of tire deflection you choose, from super-firm to softer and squishier than a regular deflated tire can handle. Likewise, you can design in whatever degree of lateral flex suits your application, and even whatever level of torque flex you'd like, which allows the wheel to flex a little on the axle before it turns. This allows it to act as a soft torque coupler and gives a touch more traction in very difficult circumstances before the wheel spins, as well as slightly isolating the drive train from damaging torque forces in the rough stuff.
People have tried to make a wheel with suspension before but they have never had the right combination of design and materials.
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There is a lot of research to show that ‘whole body vibration’ is associated with fatigue and lower back pain, increased spasticity (muscle contraction), and an increase in pressure sores and has an impact on bladder control.
Speaking with Gemma and Sam, the brains behind Loopwheels it is clear that you are speaking to a pair of very passionate people.
MacPherson-strut suspension can be used at both front and rear. The wheel hub is fixed rigidly to an upright, telescopic, tubular strut which has its top end anchored to the frame or to a reinforced wing.
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Spring loaded swivel casters Wheel Material:PP core,PU wheels Size:Ø152 x 50mm ; Ø203 x 50mm Loading Capacity:260kg ~ 300kg Bearing Type: Double Ball Bearing
humm … I was thinking: if I bought the movement, it would be the same as the mats of a War Tank. I’m not sure. Tom on September 14th, 2020 - 4:08pm
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We’ll deliver a set of trial Loopwheels directly to your door with instructions on how to fit these to your existing chair. Ready fitted with tyres and alu push rims.
The wheelchair application seems to run straight into the eternal problem with sprung wheels. Without dampers, they bounce badly, as sometimes seen in tractors fitted with buckets on a bad road. With dampers, they have very high rolling resistance. I tire needs enough flex to meet the ground, but any further suspension should be on the axle. Lardo January 30, 2018 06:00 PM
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